5. Ability to tolerate and perform aerobic exercise program (as per The Canadian Society for Exercise Physiology; all patients above the age of 69 embarking on a new exercise routine should have the "Physical Activity Readiness Medical Examination" (PARmed-X) form completed by their family physician. All patients being asked to enroll in the study will have their PCPs fill out this form to ensure the patient is able to withstand the exercise program. If they are being followed by a cardiologist, they fill out the form)